在图像上画线或插入十字标记并保存图像 [英] draw line or insert crossmark on image and save the image

问题描述

am在C#中进行编码

页面上有容器图像
现在执行后，我必须能够在该图像上打上十字标记(以显示损坏)
或绘制十字标记，就像我们用画笔在油漆中绘制一样

之后，我必须能够将更改后的图像保存在数据库中

请帮助

提前tnX

am doing coding in C#

am having an container image on the page
now after executing i must able to put crossmark on that image(to show the damages)
or draw cross mark like we draw in paint with paint brush

and after that i must able to save the changed image in database

plz help

tnX in advance

推荐答案

假设您使用的是PictureBox或类似的容器，然后在上面绘制一个十字就很容易了:

Assuming you are using a PictureBox or similar container, then drawing a cross on it is pretty easy:

using (Graphics g = Graphics.FromImage(myPictureBox.Image))
{
    using (Pen p = Pens.Red)
    {

        Point TLHC = new Point(0, 0);
        Point BRHC = new Point(myPictureBox.Image.Width, myPictureBox.Image.Height);
        g.DrawLine(p, new Point(TLHC.X, TLHC.Y), new Point( BRHC.X, BRHC.Y));
        g.DrawLine(p, new Point(TLHC.X, BRHC.Y), new Point(BRHC.X, TLHC.Y));
    }
}

将其保存回数据库的方式与您最初进入数据库时​​使用的原始方法相同，但是使用UPDATE命令而不是INSERT.

Saving it back to the database is the same method you original used to get in into the database in the first place, but with a UPDATE command instead of INSERT.

我接受了imagebutton不是图片...抱歉，信息不完整

i hv taken imagebutton not image...sorry for incomplete info

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